A Methodology of Pattern-Oriented Visual Parallel Programming and Its Interactive Supports

1. 我们提出了一种可视化语言，可以有效地描述面向对象并行编程的更高层次的抽象。由于有了可视化的符号，固有的图解概念，如模式和体系结构，可以在语言中有易于理解的表示。我们提出了视觉模式的概念和基于此概念的编程方法。我们还为视觉模式的使用/重用设计了一个交互和集成的环境。我们设计并实现了一个可视化语言环境KLIEG，其主要特点如下：(1)在设计、编程和调试阶段都可以使用单一的符号。(2)为可视化模式的使用/重用提供了简单的图形用户界面，可视化模式封装了对象组合的设计信息。(3)软件架构被表示为可视化模式的嵌套组合。任何级别中的每个视觉模式都可以通过简单的图形用户界面进行替换。(4)在显示程序的部分时，环境可能会对应该替换的对象施加更多的压力（为其分配更多的区域）。(5)对于可视化模式中的每个孔，可以定义多个可选的实现(6)可以使用自动激活可视化程序执行的可视化跟踪器。

1. We have proposed a visual language, in which higher levels of abstractions for object-oriented parallel programming can be effectively described. Thanks to a visual notation, inherently diagrammatic concepts such as patterns and architectures can have comprehensible representations in the language.2. We have proposed the notion of visual pattern and a programming methodology based upon this notion. We have also designed an interactive and integrated environment for uses/reuses of visual patterns.3. We have designed and implemented a visual language environment KLIEG, whose major features areas follows :(1) A single notation is available in design, programming, and debugging phases.(2) A simple graphical user interface is provided for uses/reuses of visual patterns, which encapsulate design information of object compositions.(3) Software architectures are represented as nested compositions of visual patterns. Each visual pattern in any level is replaceable through a simple graphical user interface.(4) Upon displaying portions of a program, the environment may put more stresses on (allocate more area for) the objects that should be replaced.(5) For each hole in a visual pattern, multiple alternative implementations can be defined(6) A visual tracer that automatically animates visual program executions is available.